2 July 1999 Electro-optic scanner for optical disk fine tracking system
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Electro-optic (EO) scanners can be used as fine tracking actuators to improve the servo bandwidth in future high density/high data-rate optical disk drives. In this paper we report on the use of an EO scanner in a new optical tracking system. Track following has been accomplished with a servo bandwidth of 200 kHz and we have demonstrated track switching between nine tracks using only an EO scanner. A fine tracking experiment using an EO scanner has been demonstrated in parallel with a voice-coil actuated lens to expand the fine tracking range. Significant improvement in track switching speed and track following are demonstrated with the scanner/lens actuators as compared to tracking with the lens actuator alone.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jinhui Zhai, Jinhui Zhai, Steve Schroeck, Steve Schroeck, Yuhong Huang, Yuhong Huang, William C. Messner, William C. Messner, Daniel D. Stancil, Daniel D. Stancil, Tuviah E. Schlesinger, Tuviah E. Schlesinger, "Electro-optic scanner for optical disk fine tracking system", Proc. SPIE 3787, Optical Scanning: Design and Application, (2 July 1999); doi: 10.1117/12.351645; https://doi.org/10.1117/12.351645

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